I hate people who think they are always right.

A coworker who seemed to be a friend turns out to be an emotionally needy narcissist who seems to think that he is a perfect human being and is the best example of how to live.

Long story short is that we did some bonding via alcohol and smoking cigarettes. Especially when I was in a bad period in my life where I had little self confidence, was in a bad financial situation and overshared many details abound my personal life.

And yeah we also work as software devs in the same team but I started avoiding working with him directly, because due to his seniority he overcomplicates things a lot to the point where stuff gets postponed for months. Meanwhile I am a simple guy, I do my tasks and if they are not up to the standard I just work on the feedback until Im up to the standard, thats it. Its just a job for me, for him its a way of life and he considers himself to be basically an artist.

Hes always trying to prove me something, showing that the "long way" is the best way and so on. In reality I dont give a fuck about him. I live my own life and I have my own priorities. I work fulltime in one job, also I work part time as a freelancer and in total I make about 20 percent more than he does. Previously before this job I owned my own company where for 2 years I ran my own projects which generated a decent revenue. I know what is hard work and how to sacrifice myself in order to achieve results. I am more pragmatic and I have some limitations of what I can be good at (since I have a shitty working memory due to my ADHD). So I have systems in place and bottom line is that I earn a decent living and my skillset is different. Yeah I agree that in some ways he is better than me, but dude has such a massive inflated ego that now he thinks that he unlocked some sort of universal wisdom and now hes suddenly experienced in every field of life and his opinion is the right one.

This guy takes a massive pride in how good software engineer he is and in every topic or interaction he tries to one up me. Which most of the time is just his preference or in order to gain a 0.0001 percent performance increase. Dude is basically a big walking ego and since "we are close now" his ego started bleeding into personal relationship.

In my personal life, Im in a stable relationship, thinking of proposing soon and getting married. I already co-own an apartment with my current girlfriend. Everything is serious and planned, Im soon to be 30 years old. He is the same age but he still thinks hes young hot shit and all he cares about is getting shitfaced a couple times a week after work and he doesnt really have any other hobbies. He has a girlfriend but I dont see any future in there TBH.

So what I did now is I started putting some distance between us. No more drinking every week with him, maybe maximum once in 2 or 3 weeks. I started working from home more. Also I stopped sharing my personal life with him. Each time when he thinks he is right I just go along with it and dont even pay attention to his emotional manipulations. I just hope one day he fucks off completely and I wont give in to his gaslighting. Maybe in a few months I will be leaving this job, so I will never have to deal with him again.

Lesson learned: dont be vulnerable to coworkers who you bond together only via alcohol.